Rochester carburetor 2 barrel models 2g, 2gc, 2gv 1 carefully read the text in the previous pages to become familiar with the content of this instruction sheet before performing carburetor overhaul. Late 60s 350 car and light truck 2bbls are large base and would be good unless the choke type is different. What is this for, on the back of my rochester 2 barrel carb. On the second line, 0667 is a julian date code dddy which translates to the 66th day of the year, or march 7, 1977. Number identification guide new carburetor for type rochester 2gc 2 barrel chevrolet chevy small block engines 5. In, rochester produced a special high performance 2gc carburetor for the oldsmobile this carburetor was more like the front half of a 4g than a 2g. Feb 01, 2011 there were also several different sizes of 2g 2gc carbs, some of which may be too big for a 327. The procedures recommended by rochester products division of general. N1427 disassembly use the exploded view as a guide. The procedures recommended by rochester products division of general motors an d described in this service manual are effective methods of performing service opera.
It has been proven to be dependable and a versatile performer as witnessed by its broad application and usage since its first introduction in 1965. Page 2, rochester 2gc, 2 jet choke parts, including thermostats, pulloffs, or vacuum break and other related parts. Rochester 2gc carbs rebuild edelbrock intake manifold hot. The gv variant has a divorced choke coil mounted on the intake manifold, the gc variant has the choke coil mounted on the carb body.
Jan 16, 2009 a rochester 2gv with the hot idle compensator feature is easy to identify by looking at the back firewall side of the carb as described in the following from carburetor models 2g, 2gc, 2gv service manual 9d 3, may, 1973. The vee shaped inpression increases the filtering area. Supersedes 9d5 models 4mv4mcm4mem4m c dated may 1973. Rochester 2g new carburetor manual choke vacuum governor.
For the 235 hp version of the 327 full size passenger cars, the rochester 2bbl carb is a size sae 112. The open end of the bronze filter faces the fuel inlet nut as shown in figure 1. The numerical sequence may generally be followed to disassemble unit far enough to permit cleaning and inspection. This was correct for the year of the car, leading me to believe it is the original carb. A rochester 2gv with the hot idle compensator feature is easy to identify by looking at the back firewall side of the carb as described in the following from carburetor models 2g, 2gc, 2gv service manual 9d 3, may, 1973.
Buy new carburetor for type rochester 2gc 2 barrel chevrolet chevy small block engines 5. Important safety notice proper service and repair is important to the safe, reliable operation of all motor vehicles. The 2 ahead of the g means the carburetor has 2 bores, 2 venturii and 2 separate but identical metering systems, one for each carburetor bore. Pdf a a l carburetor models 4mv4mcm4mem4m c service. We carry rochester choke parts for both integral and divorced choke types. If the carb has this feature, it is easily noted on the back firewall side of the carb base as described in the following from carburetor models 2g, 2gc, 2gv service manual 9d 3, may, 1973. Rochester 2jet carb manual the old car manual project. Brassfloats, if a material other than brass, and there is any doubt, replace the float. Check your factory shop manual or the carburetor manufacturers manual. Larry fulton, who runs automotion rochester, specializes in custom tripower systems for hot rod. Your guide to the most popular rochester carburetors. Carburetor models 2g, 2gc, 2gv service manual 9d 3 may, 1973 supersedes 9d 3 dated aug. Delco 9d3 carburetor service manual, models 2g, 2gc, 2gv. A a l carburetor march 198 1 supersedes 9d5 dated may 197 3 models.
Some of the most soughtafter rochester carbs are the tri power carburetors that used three rochester twojet 2g carbs on the oldsmobile j2 setup, 348 chevy, cadillacs. New rochester carburetor parts hot rod carburetors custom. A a l carburetor 9d 5 march 1981 supersedes 9d 5 models 4mv4mcm4mem4m c dated may 1973 service manual delco supersedes 9d 5 models 4mv4mcm4mem4m c dated may 1973. Nov 17, 2010 according to murphy, rochester began producing its twobarrel carburetor in 1954. During prolonged idling in heavy traffic in hot weather, underhood temperatures can exceed 200 degrees farenheit causing severe percolation or boiling of. Rochester 2g carburetors how to modify your twobarrel carb. Available at a lower price from other sellers that may not of. Models 2g, 2gc, 2gv service manual carburetor parts.
Vintage delco models 2g 2gc 2gv carburetor service manual 9d 3 may 1973. It went into mostly general motors automobiles and trucks. Jets for all rochester carbs available through our online catalog. Purchase individually or in a custom assortment kit. You could not lonely going next book accretion or library or borrowing from your links to admission them. During prolonged idling in heavy traffic in hot weather. Service manual aisan carburetor 2k manual aisan carburetor 2k now is not type of challenging means.
Quadrajet carburetor 4mv4mcm4mem4mc service manual 9d5. The second port in the throttle body is located midway between the top of each valve and the throttle body casting and is positioned higher to act as an air bleed for the lower port, thereby modulating the amount of vacuum signal supplied by it. The 2gc carbs in the 3 2barrel setup are strikingly similar to a stock 2gc, except that the end carbs have no provision for a choke and some other small differences. Condition is used, very nice clean copy of this delco service manual. Sep 25, 2012 rochester made carburetors from 1932 into the 1990s for many of the greatest cars general motors products like 567 chevies as well as studebaker, packard and others. A quick internet search revealed that we had a rochester 4barrel carburetor with a manual choke that met california emissions standards. Pdf service manual aisan carburetor 2k mercruiser weber page 925. The hot idle compensator is used on some 2g carburetor models to off.
This is an agreed easy means to specifically get lead by online. The model 2gc choke system may have the choke housing. Technologies have developed, and reading delco 9x carb manual printable 2019 books may be far more convenient and simpler. Delco rochester there are three basic model g rochester twobore carburetors. May 3, 2003 this manual covers all rochester qjet carbs including the 4mv, m4mc, m4me, m4med, e4me and e4med. The power valve is the same as used in the 4g four barrel and the accelerator pump is a similar design. Largescale production lasted until 1979, meaning the.
It has been proven to be dependable and a versatile performer as witnessed by its broad application and usage since its first introduc. The 307 2gc s are all small base i think, its been a while so it wont fit the large base manifold on the 305. Rochester carburetor model 4gc 1952 service manual parts bulletin 9d 9 m3635. Fits small base 2g 2gc rochester bolt pattern wcable. Manual rochester carburetor manual by mike stubblefield and john haynes are both very good technical resources for the rebuilding the quadrajet. The accelerator pump is used to provide the fuel necessary for smooth operation during this time. This is the delcorochester service manual for 2g, 2gv, 2gc and 2ge carburetors. Some models use a synthetic floating pump cup which uses no vapor vent ball. Delco 9d 3 carburetor service manual, models 2g, 2gc, 2gv, 1973. Rochester carburetor models 4g 4gc general exploded view the general design and parts shown will vary to individual units covered on this instruction sheet. Its on a 1963 impala now but my manual says i need. Rochester 2jet carburetor manual the old car manual project.
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